Bench-vise.



No. 7I3,|2|. Patented Nov. Il, |902; J. H. LONG.

BENCH VISE.

-App1ication led Feb. 13, 1902.)

(No llodel.) 2 Sheets-Smell.

@D ummm mi Hl umu l l v Ema l 3A t um fumumu-I-llulnn ATTEST A Q' a 'IPNENT DE.

No. 7|3,|2|. Patented Nov. n, |902;

J. R. LONG.

BEN'CH VISE.

Application med Feb. 1s, 19o2,\ No Model.) 2 Sheets-Sheet 2.

A b l ATT 15T INV ENT :l1- f AIT-IY y y, Fig. 3.

i UNITED STATES' 'PA-TENT Ormes.

JOHN R. LONG, OF WARREN, PENNSYLVANIA.

BENCH-WSE.

SPECIFCATIONformng part of llettersy Patent No. 713,121, dated November11, 1902. Application filed February 13', 1902. Serial No. 93,898. (Nomodel.)

provements in Bench-Vises; and I do'declare that the following is afull, clear, and exact description of the invention, whichwill enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to bench-vises; and the invention consists in theconstruction of a vise substantially as herein shown and described, andparticularly pointed out in the claims.

In the accompanying drawings, Sheet l represents,one form of myinvention, andSheet 2 a modified form thereof.

In Sheet l, Figure lis a side elevation of the vise. Fig. 2 is alongitudinal sectional elevation thereof; and Fig. 3 is a cross-sectionon line 0c fr, Fig. 2. Fig. 4. is a plan view on line Sheet 2, Fig. 5,is a longitudinal sectional elevation of the modifications abovereferred to; and Fig. 6 is a cross-section thereof on line z' z, Fig. 5.Fig. 7 is a plan View on line 2 2, Fig. 6.

The style of vise to which this invention relates is that wherein bothjaw members are rotatable together horizontally upon a common base andthe jaws are automatically locked against rotation on their base when anobject is clamped in the vise.

To these ends the invention comprises certain parts, as shown, as inFig. 1, wherein there is a base A, a solid cylindrical raised portion a,provided with a series of holes 0L horizontally about its side, andabout this is a ring or collar A', encircling said base portion of. andstanding'upward therefrom a sufficient depth to eectually support andsocket what is herein termed the xed member B of the vise. The saidmember or jaw has its lower portion b `constructed substantially in theshape of a hub, fitting snugly and yet rotatably within the socketproduced by ring A', standing above base A. For convenience ofdescription and reference the part or member B is referred to herein asa fixed jaw or member, in contradistinction to the movable j aw ormember C, which is adapted to beoperated toward and from the member Bafter a manner which is now well known. The said jaw or member C has anarm or projection @extending horizontally through a correspondingopening in the xed member B, 4and this arm or extension c is preferablyrectangular in exterior outline, as seen in crosssection, Fig. 3,although it is not necessarily limited to this shape, and is hollow fromits under side its full length and adapted to operatively receive thescrew-threaded shaft E lengthwise therein. The said screw passes througha nut F, which is seated upon the top of dog D and pivotally connectedtherewith by side pins (l or their equivalent. Said nut F lmay have anysuitable shape, but is square in cross-section, as here shown, and

abuts against the upwardly-projecting por-v tion d of dog D, where ithas all itsbearing or pressure when the screw E is tightened. Thetransverse pins d or equivalent means serve :mostly to confine the nutin working position when the screw is run back in opening the vise;otherwise the nut might be caused to travel with the scr-ew. Then,again, by having this nut separate and free it always accommodatesitself to the position of the screw E, whatever the position of the dogon which it rests may be.

The dog D is shown in cross-section, Fig. 4., ywherein the hub b of thefixed jaw is shown as having a recess to receive the dog, and atransverse pivot-pin d2 supports the dog at or near its middle in thesaid hub in position .to lock against the ring or collar A at its lowerextremity and to bear against the xed dog D at its upper and rearextremity when locking occurs. To this end also the recess for the dogis of such size as to permita slight tilting movement of the dog on itspivot-pin, and thus the said dog` rotates or turns more orless whenlocking occurs, with the pivot d2 as its, fulcrum and support. I havefound that by employing a pivot d2 for the dog and a rocking movementtherefor on the pivot I obtain a much more effectual locking of theparts against rotation andwith considerably less work on screw E than ispossible by any other construction known to me, and it is much moreeffectual than it would be if the said pivot were omitted and I reliedsimply upon upper and lower engagements of the dog to do the locking.With this pivoting l'OO of the dog the need of having nut F looselysupported thereon becomes obvious, because the nut must hold to theplane of the screw while the dog turns or tilts in respect thereto moreor less on its pivot.

The modifications shown in Figs. 5, 6, and 7 conform in the main to theconstruction and principle of operation set forth in the foregoingviews, and the same reference letters and characters are applied theretoexcepting as to dog G and nut H. In this instance the dog is set into arecess in the hub b, extending entirely across the hub, and has a pivotd2 centrally therein, on which it is supported and adapted to tilt moreor less, as in Fig. l. The nut II rests loosely in a trough in the upperportion of -said dog and has heavy rims or flanges 7L at its ends, whichbear against the edges of the dog and take all the pressure of the screwE when in operation. The said nut is thus confined within or upon theupper portion of the dogs, in which, however, it has relatively the samefreedom of action when the dog tilts as the nut F in the other form, sothat the dog is sure to lock against the collar A at its lower portionand against the fixed member diagonally at the front thereof at itsupper portion, and thus prevent rotation of the parts on the base A whenthe vise is in use, and collar A is locked by pin a2. By thisconstruction of nut I avoid the necessity' of fastening the nut directlyto the dog to confine it against travel with the screw.

Ordinarily the jaws are locked against horizontal rotation on hub Z) ofmember B when an article is clamped therein; but sometimes it occursthat such rotation of both jaws together is desirable, especially to docertain kinds of work. To this end I have provided for rotation, evenwhen the vise is carrying an article, by means of ring A' turninghorizontally about the central raised portion a of base A, and said ringis equipped with a pin a2, adapted to be engaged in any one of holes a,and thus adjustably fix the parts in any desired position. When ring orcollar A is locked, it serves the purpose of a fixed or rigid part onthe base, the same as if it were integral therewith.A

By fastening the recesses in the hub or lower portion of the fixed jaw,as shown, and making one edge of the dog to engage the collar A and theother the back of said recess in the jaw I get locking connectionthrough to base A, which is a stationary or permanently-fastened part.

If the dog were to engage only against the collar A' and not directlyagainst the fixed jaw, except through or by its pivot d2, a fairly goodhold would be obtained, but not as good as with engagement by or at theedge of the dog.

Vthat I claim isl. In a vise of the kind described, a base and anannular upwardly-projecting collar thereon forming a socket portion, afixed jaw having a hub rotatably seated within said collar, and a dogpivotally supported between its ends in said jaw and adapted tofrictionally engage said collar, in combination with the movable jaw anda screw thereon operatively engaged with said dog to tighten and loosenthe same, substantially as described.

2. The fixedjaw and the base-support therefor, and a dog to lock the jawin respect to the base pivoted in the said jaw in combination with themovable jaw, a screw therein, and a nut on the screw loosely engagingthe upper portion of said dog, substantially as described.

3. The fixed jaw and the base and a collar overlapping a portion of bothbase and jaw and providing a socket for the jaw, the movable jaw and thebinding-screw therein, and a dog to lock said parts against rotationpivoted between its ends in the fixed jaw and .loosely connected withsaid screw, substantially as described.

4. The base and lthe collar thereon, the fixed jaw having a hubrotatably socketed in said collar, and having a recess open to saidcollar, a dog pivotally supported in said recess and having its outeredge constructed to making locking engagement with said collar, incombination with the movable member of the vise, and a screw thereinoperatively connected with the top of said dog, whereby the said dogbears against said collar at one edge and against the said fixedjaw withits opposite edge when in locking position, substantially as described.

5. In bench-vises, a fixed base having a cylindrical upwardly-projectingportion and a collar rotatably adjustable thereon and projecting abovethe same, in combination with a xed member of the vise seated withinsaid collar on said base and means to lock said collar and fixed membertogether, substantially as described.

6. A vise comprising a base and a collar rotatably supported thereon andextending above the base, in combination with the fixed and the movablemembers of the vise, said fixed member having its lower portion engagedwithin said collar, a dog to lock said fixed member and collar together,and means to lock said collar on the said base, substantially asdescribed.

Witness my hand to the foregoing specification this 27th day ot'January, 1902.

JOI-IN R. LONG.

Witnesses:

R. B. MOSER, T. M. MADDEN.

IOO

IIO

